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Finishing Academy Paint Booth Training

Choose one of these Aerospace Refinish Training Modules:


1.1 Introduction

1.2 Crossdraft

1.3 Downdraft

1.4 Airflow

1.5 Filter Replacement

1.6 Temperature and Humidity - Controlled Booths

1.7 Equipment

1.8 Fire Protection

1.9 Conclusion

1.5 Filter Replacement


There is a dramatic difference in the ability to maintain the filters of the two booth types. The crossdraft booth allows for all filter stages to be in one location and you can change the filters from outside the filter house. The only tools needed are a rolling platform to reach overhead filters.

In a downdraft booth the first stage of filters are located in the floor trench under the grating. If the grating is a man load rated grating, then the grates must be lifted off so the filters can be accessed. If the grating is rated for the load of the airplane, it may be necessary to use a hoist to remove the grating because of its weight.

The use of an automatic filter changing system which uses rollers and a support bed can ease the pain of filter change-out as well. These have been used to good success as long as the filters are changed often enough so that the accumulation of paint residue is minimized. The filters in the filter house (2 stages) are handled the same way as the filters in a crossdraft filter house.



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